CVE-2020-26259
Scores
EPSS
Percentile: 88.9%
CVSS
CVSS Score: 6.8/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
High (H)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Changed (C)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
High (H)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
None (N)
Measures the impact to the availability of the impacted component
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:P
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
Partial
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Partial
Measures the impact to the availability of the impacted component
Description
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.15, is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling. The vulnerability may allow a remote attacker to delete arbitrary know files on the host as log as the executing process has sufficient rights only by manipulating the processed input stream. If you rely on XStream’s default blacklist of the Security Framework, you will have to use at least version 1.4.15. The reported vulnerability does not exist running Java 15 or higher. No user is affected, who followed the recommendation to setup XStream’s Security Framework with a whitelist! Anyone relying on XStream’s default blacklist can immediately switch to a whilelist for the allowed types to avoid the vulnerability. Users of XStream 1.4.14 or below who still want to use XStream default blacklist can use a workaround described in more detailed in the referenced advisories.
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Sources
CWEs
Related Vulnerabilities
Exploits
Vulnerable Software (18)
Type: Configuration
Product: libxstream-java
Operating System: debian
{ "fixed": "1.4.15-1"}
Source: debian
Type: Configuration
Product: libxstream-java
Operating System: ubuntu bionic 18.04
{ "fixed": "1.4.11.1-1~18.04.1"}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu focal 20.04
{ "fixed": "1.4.11.1-1ubuntu0.1"}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu groovy 20.10
{ "fixed": "1.4.11.1-2ubuntu0.1"}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu hirsute 21.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu impish 21.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu jammy 22.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu kinetic 22.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu lunar 23.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu mantic 23.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu noble 24.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu oracular 24.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu trusty 14.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: libxstream-java
Operating System: ubuntu xenial 16.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Vendor: *
Product: debian_linux
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: *
Product: fedora
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: *
Product: struts
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.0.0", "vulnerable": true } ], "operator": "OR"}
Source: nvd
Type: Configuration
Vendor: *
Product: xstream
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:xstream:xstream:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.4.15", "vulnerable": true } ], "operator": "OR"}
Source: nvd